Hand-brake mechanism.



W. E. WINE.

HAND BRAKE MECHANISM. APPLIGAToN FILED Palm, 1913.

Patented June 9, 1914.

Mr/Vissie.-

WILLIAM E. WIN'E, OF TOLEDO, OHIO.

HAND-BRAKE MECI-IANISM.

Specification of Letters Patent. 'l

Patented J une S, 1914.

Y Application filed February 3, 1913. Serial No. 746,005A

T all whom t may concern:

Be it known that I, "WILLIAM E. WINE, aY citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented new and useful Improvements in' Hand-Brake Mechanism for` Railway-Cars, of which the following is a specification.

My invention relates to improvements in brake mechanisms for Vrailway cars.

'llhe object of my invention is to so construct a hand brake mechanism as to eliminate all blacksmith work on the shaft thereof.

A further objectof my invention is to so construct the pawl that it is held in operative relation to the ratchet wheel at all times.

With these and other objects in view, my invention consists in certain improvements, arrangement of lparts and combinations of elements as hereinafter described and Claimed.

In the accompanying drawing: Figure 1 represents a hand brake mechanism embodying my invention; Fig. 2 is a top plan View of ratchet wheel and pawl and section through brake shaft; Fig. 3 is a top plan view of hand wheel and section through top end of brake shaft; Figais a section of the ratchet plate on line 4 4; Fig. 5 is a part top plan of the winding drum bracket; Fig. 6 is a top plan view of winding drum.

Similar parts are designated by similar numbers throughout the several figures of the drawings.

Referring now to the parts by number, 1 represents an angular brake shaft provided with a threaded portion 2 at its upper end on which is a nut 3 for holding the hand wheel 4 in position. In order that the hand wheel may be rigidly attached to the shaft the said shaft is provided with a cone shaped portion 5, adjacent to the threaded portion, on which the hub of the hand wheel is made to lit. To prevent the hand wheel from turning on the shaft an extended portion 7 of the hub engages the angular shaft near its upper end.

At the lower end of the shaft 1 is a winding drum 8 in engagement therewith, the bottom end of the winding drum being provided with a trunnion 9 engaging a bearing in the bracket 10. The top end of the winding drum has a bearing in a seat between two laterally extending arms 11 and is held therein by a pin or key 12 through the outer ends of thearms. The trunnion 9 is held in position by thel laterally extending portion 9a on the lower end of the trunnion 9. In order to remove the winding drum 8 fromthe bracket the shaft 1 and key 12 are removed, the drum rotated about a vertical axis through an angle of 180 degrees from position shown in drawing and the top end turned to the right about an axis within the bearing for trunnion 9. The winding drum 8 is provided with lugs 13 having a hole 14 through which a bolt may be inserted to connectV the winding chain to the drum. If desired however the lugs 13 may be omitted and the hole for connecting the chain located as shown at 14. n

In Fig. 3 is shown a hand wheel which is made up of four circular portions exactly alike, all cast integral. making a very strong, light and efficient hand wheel.

In order to prevent the shaft 1 from turning when the brakes have been applied by hand a ratchet is provided which consists of the following` parts: ratchet wheel 15 which is mounted on the brake shaft at a suitable location; ratchet plate 17 which is `provided with a bearing surrounding the journal portion 1G of the ratchet wheel 15; the ratchet plate 17 is provided with a trunnion 18 on its outer end; and a pawl 19 adapted to engage the teeth 20 of the ratchet wheel 15. The journal portion 1G of the ratchet wheel is held in engagement with the bearing in the ratchet. plate 17 b v a flange 21 on the pawl 19. The pawl 19 is held in place on the trunnion 18 of the ratchet plate 17 by a bolt 22. Instead of using a bolt to secure the pawl in position the end of the trunnion may extend through a sufficient distance to enable a pin to be applied, or any other convenient means for securing same may be used.

23 represents a portion of a car supporting the ratchet mechanism and on account of this construction it can be located at any point along the length of the brake shaft..

It will be seen from the foregoing that the brake shaft can be made from a straight rectangular bar of iron without heating, upsetting or any blacksmith work whatsoever, it only being necessary to turn 0B? a portion of the upper end and thread same for the application of a nut. It will be further noted that the ratchet wheel is held in operative communication with the pawl at all times irrespective of its location longitudinally on the brake shaft. Also the winding drum cannot become disconnected from its bracket so lon as it is in engagement with the brake sha t. The arrangement of pawl here shown is readily applicable to all designs of ratchets in which it is necessary to provide means for maintaining them in operative rela-tion to each other and can be applied in repairs at a minimum cost. Y

Having thus described my invention, what I claim is:

1. In a brake mechanism, the combination of a brake shaft, a hand wheel thereon, a winding drum, a ratchet Wheel, a ratchet plate anda pawl, said hand wheel being provided with a hub having angular chambers therein and shoulders adapted to engage corresponding portions of the brake shaft.

2. In a brake mechanism, the combination of a brake shaft, a hand wheel thereon, a winding drum on the brake shaft, a bracket for the winding drum, a ratchet wheel, a ratchet plate and a pawhsaid winding drum being provided with a journal on its lower end adapted to engage a bearing in said bracket and a laterally extending portion on said journal adapted to be normally held in engagement with said bracket by the brake shaft t0, retain the journal within the bearing.

3. In a brake mechanism, the combination of a brake shaft, a hand wheelthereon, a winding drum on the brake shaft, a bracket for theV winding drum, a ratchet wheel, a ratchet plate and a pawl,said winding drum being provided with a journal on its lower end adapted to engage a bearing in said bracket anda laterally extending portion on said journal adapted to be normally held in engagement with said bracket by the brake shaft, and an additional means for holding the drum in engagement with the bracket, said additional means being located near the upper end of the bracket. y

4. In a brake mechanism, the combination of a brake shaft, a hand wheel thereon, a

winding drum, a bracket for the winding drum, a ratchet wheel, a ratchet plate and a pawl, said winding drum being provided with a journal portion adapted to engage a bearing in said bracket and a laterally extending portion on said journal adapted to be normally held in en agement with said bracket by the brake shaft to retain the journal within the bearing, said winding drum being also provided with parallel laterally extending chain attaching means near its upper end, said bracket being provided with means for retaining said drum in normal position.

5. In a brake mechanism, a bracket, a brake shaft, a member on the brake shaft provided with a journal portion adapted to engage a bearing in said bracket and a laterally extending portion on said journal adapted to be normally held in engagement with said bracket by the brake shaft to retain the journal within the bearing.

6. In a brake mechanism, the combination of a bracket,.a brake shaft, a member on the brake shaft provided with a journal portion engaging a bearing in said bracket and a laterally extending lug on the lower end of said yjournal adapted to be normallyv held in engagement with said bracket by the brake shaft to retain the journal within the bearing. 1

7 In a'brake mechanism, the combination of a bracket, a brake shaft, a cylindrical member on the brake shaft provided with journals on its upper and lower ends engaging bearings in said bracket, one of said journals being provided with a lug extending laterally below a portion of and engaging said bracket to retain the journal within the bearing, said lug being normally held 1n engagement with said bracket by said brake shaft.

Signed at Wilmington, North Carolina, this 14th day of December, 1912.

In the presence of- R. HUNT, R. W. Banniere. 

